<template>
  <view class="login-container">
    <!-- 提示登录的图标 -->
    <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <!-- 登录按钮 -->
    <button type="primary" class="btn-login" @click="getUserProfile">一键登录</button>
    <!-- 登录提示 -->
    <view class="tips-text">登录后尽享更多权益</view>
  </view>
</template>
<script>
  import { mapMutations,mapState } from 'vuex'
  export default {
    methods:{
      ...mapMutations('m_user', ['updateUserInfo','updateToken','updateRedirectInfo']),
      getUserProfile() {
      uni.getUserProfile({desc: '你的授权信息',success: (res) => {
      // 将信息存到 vuex 中
      this.updateUserInfo(res.userInfo)
      this.getToken(res)
      },
      fail: (res) => {
      return uni.$showMsg('您取消了登录授权')
      }
      })
      },
      async getToken(info){
        const  [err,res]=await uni.login().catch(err=>err)
        console.log(res)
        if(err ||res.errMsg!=='login:ok') return uni.$showMsg('登录失败！')
        console.log(res.code)
        console.log(info)
        const query = {
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }
        const { data: loginResult } = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        if (loginResult.meta.status !== 200) return uni.$showMsg('登录失败！')
        this.updateToken(loginResult.message.token)
        this.navigateBack()
      },
      navigateBack(){
        if(this.redirectInfo&&this.redirectInfo.openType==='switchTab'){
          uni.switchTab({
            url:this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    },
    data() {
      return {
        
      };
    },
    computed:{
      ...mapState('m_user',['redirectInfo'])
    }
  }
</script>
<style lang="scss">
  .login-container {
    // 登录盒子的样式
    height: 750rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #f8f8f8;
    position: relative;
    overflow: hidden;
  
    // 绘制登录盒子底部的半椭圆造型
    &::after {
      content: ' ';
      display: block;
      position: absolute;
      width: 100%;
      height: 40px;
      left: 0;
      bottom: 0;
      background-color: white;
      border-radius: 100%;
      transform: translateY(50%);
    }
  
    // 登录按钮的样式
    .btn-login {
      width: 90%;
      border-radius: 100px;
      margin: 15px 0;
      background-color: #c00000;
    }
  
    // 按钮下方提示消息的样式
    .tips-text {
      font-size: 12px;
      color: gray;
    }
  }
</style>
